London, J., & Bullard, N. (2008). The call of the wild (abridged version) (Simplified edition.). Oxford University Press.
Čikaški stil citiranja (17. izdanje)London, Jack, i Nick Bullard. The Call of the Wild (abridged Version). Simplified edition. New York: Oxford University Press, 2008.
MLA način citiranja (9. izdanje)London, Jack, i Nick Bullard. The Call of the Wild (abridged Version). Simplified edition. Oxford University Press, 2008.
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